This weekly update tracks some of the largest cryptocurrencies by market share: bitcoin and ether. We’ve also included XRP, as it was one of the largest cryptocurrencies when this series began. According to Wikipedia, a cryptocurrency is “a digital asset designed to work as a medium of exchange that uses cryptography to secure its transactions, to [...] The post Cryptocurrencies: Bitcoin Rallies Past $72K to New Record High appeared first on ETF Trends .